Apr 212014

2 dogs wearing sunglasses Know These 6 Myths Before Choosing Your Next Pair of SunglassesSpring has sprung. The weather is getting nicer. Time for a new pair of sunglasses?  It was time for me. Even though sunglasses are not a regular topic of our lighting blog, I felt that my recent experience picking out new sunglasses warranted this post. I was disappointed at the number of myths about sunglasses that were told to me by multiple, yes, multiple, supposedly knowledgeable sales people. So, I figured that it might prove useful to others if I shared my experience and busted these myths with this sunglasses buying guide. 

Myth #1: UV Protection In Sunglasses Not Important

Fact: The sun’s ultraviolet (UV) rays can do several very bad things to your eyes and the area around your eyes: harm the lens, retina, and whites of your eyes, cause corneal sunburn and blisters, increase your chances of getting cataracts, have been linked to macular degeneration (vision loss due to damage due to a small spot near the center of the retina called the macula), cause skin cancer around your eyes including your eyelids, and help cause unwanted wrinkles and skin thickening around your eyes. WOW!  There’s a lot more but it would take more than this short response to get even more technical.

Myth #2: Sunglasses With Glass Lenses Remove All UV Radiation

I visited a small boutique optometry store and spoke to someone with 40 years of experience. He told me that if a pair of sunglasses has glass lenses, then they remove all UV radiation. Not true.

Fact: Glass of almost any kind (building windows, car windows, a pair of clear glasses) can remove some but not all of the UV radiation that reaches your eye. Ultraviolet (UV) radiation is made up of three segments: UVA, UVB, and UVC. Fortunately for all of us UVC radiation is blocked by the earth’s atmosphere, ordinary glass blocks out UVB radiation (the main sunburn ray that causes skin cancer and sun damage) but allows UVA to pass right through (UVA rays penetrate the skin more deeply and can also cause skin cancer, wrinkles, and premature skin aging). However, it is possible to add a special UV-blocking film to ordinary glass or use specially formulated glass (or plastic) to block out 99.9% of UVB and UVA radiation.

Myth #3: Polarized Lenses Also Mean UV Protection

Two representatives in the optical department of a national chain of retail stores told me thaif a pair of sunglasses has polarized lenses, then they also provide UV protection. Not true.

Fact: These two features of sunglasses are entirely different from one another; one feature does not imply the presence of the other feature. Polarized lenses minimize direct and indirect glare from the sun; they allow you to see more clearly when the sun’s rays are reflected off flat, smooth surfaces like water, road pavement, and car hoods. Polarized lenses are not designed to reduce the ultraviolet radiation that reaches your eye.

Myth #4: More Expensive Sunglasses Have The Best UV protection

Fact: This is not always true. Relatively inexpensive sunglasses can sometimes block 99%-100% of UV radiation but they are not easy to find. However, you should be careful about still another problem – inexpensive sunglasses sometimes are non-uniform in thickness and have poor optical quality. This can mean that they sometimes distort the shape or clarity of an object, depending on what portion of the lenses that you look through.

Myth #5: Sunglass Tint Is Not Important

Many people think that the tint of the sunglass lenses is not that important. That it is purely an aesthetic decision based on your personal preferences and the “cool factor” you’re looking for.

Fact: The tint or hue of the sunglass lenses plays an important role in the perception of colors. Yellow or rose tinted lenses generally can make it difficult to distinguish different colored traffic lights. Gray, green, and brown lenses, however, minimize color distortion and are a better choice when you’re driving a vehicle. Some specialized sunglasses can have a special tint that are designed to enhance your performance of a specific task or sport; e.g., at least one sunglasses manufacturer has created a whole array of lens hues, one of which can possibly improve your tennis game by enhancing the color of the tennis ball.

Myth #6: Size Of Sunglasses Not Important

Most people choose the size of their sunglasses on whether or not they think they look “cool.” Thus, they think that size is not important.

Fact: Size, at least when it comes to sunglasses, does matter. It’s this simple: The larger the sunglasses, the broader the protection of your eyes, eyelids, and the skin around your eyes against UV damage. However, you can have all of that and still look “cool.”

Enjoy your spring and summer and enjoy your new sunglasses.

 Posted by on April 21, 2014 at 1:58 pm
Apr 172014
personalizeicon002 4 Simple Tips for Personalized Kitchen Lighting

via www.stargroup1.com

This week, I participated in a weekly twitter chat called KB Tribe Chat (Hint: the “KB” stands for “Kitchen and Bath.”). It’s a lively weekly chat between professionals in the kitchen and bath remodeling industry, of which lighting is an important part. I always enjoy these weekly chats enormously. They are chock full of valuable information about current trends in kitchen and bath design (a big interest of mine, since I used to work for a K and B remodeling company just after finishing my undergraduate degree, while I was, you know, “finding” myself.). It’s also a fun time. There are a lot of personalities in the chat, and the conversations can get pretty funny. People share all kinds of great pictures of unique, or beautiful, or wacky designs. It’s especially rich because there are folks who make wine racks, who do custom tile, who do counters, cabinets, and floors.

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Apr 102014

This guy’s name is Humphry. He’s about 24 years old. A chemist. And, by the looks of him, pretty content with his accomplishments and station in life. He’s the boy wonder credited with creating the first incandescent light. He seems to be thinking, “I’m just a genius. No biggie.” It’s around 1802. England.

humphrydavy chemist Light Bulb Moments in Light Bulb History: The Incandescent Lamp

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Apr 082014

Lichtbogen 3000 Volt Light Bulb Moments in Light Bulb History: The Carbon Arc Lamp

We were born into a world of electric illumination. Incandescent lights, fluorescent lights, halogen, xenon, LEDs. It glows from lamps and televisions, twinkles from nightlights, puts on a show when you rush past it in tunnels, speckles a cityscape at night. We take it for granted, generally speaking. It’s tough to imagine a world in which electric light does not exist. But, when you think about it, electric lamps have only been the norm for a tiny,TINY percentage of the history of human life.

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Apr 032014
BPH David Sedaris 2 2014 How to Achieve Horrible Lighting, with David Sedaris

via brisbanepowerhouse.org

Back in February, Harper’s Bazaar published an essay written by David Sedaris about his disdain for overhead lighting. In it, he recounts the role that the color-washing, skin tone-obliterating, poison that is overhead light has played in his life. He starts the essay by happily remarking that the low ceilings in his 500-year-old bungalow in England, while they may injure him and his guests (he tells of scraping bits of scalp from the doorjamb), at least prevent the installation of overhead lighting.

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Apr 012014
maxresdefault Remember When? Pop Culture in April 1999

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Here at Pegasus, we are keeping the celebration of our 15th anniversary going by taking you on another ride 15 years into the past, back to 1999. This time we’re visiting the month of April, when myspace was officially introduced to the internet, when “No Scrubs” by TLC took over the charts, and when Marilyn Manson and “goth” culture was blamed for a school shooting. Cable modems were announced to be the future of internet “surfing,” and an April Fool’s hoax regarding telepathic emails piqued the imaginations of many.

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Mar 252014

Lately, there has been a lot of buzz about 3D projection mapping. I first heard about it from an electronic music enthusiast who plans to acquire projection mapping software and add this extreme visual component to his live shows. But many people were introduced to projection mapping from the coverage of the Winter Olympics in Sochi this year or from the viral video of projection mapping shown below, a pre-game show on the court floor at a Cleveland Cavaliers game. Prepare to be astonished.

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Mar 202014

9cbb64a302a2361f2bc743b2f3bc7d5e The Best Light Painting Photography

Cruising the web can be erratic, like you’re in one of those car commercials where cars are whizzing by you. It’s nice when an interesting piece of digital or digitized art arrests your attention for a moment, takes you out of the whirlwind.

So far, I have written two posts on the topic of light painting. One was an interview with a professional photographer who explains how to do light painting, and one was the documentation of how I have tried out some light painting techniques. Since then, I’ve only become more interested in the ever more popular craft known as light painting photography.

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